[[!meta date="2018-02-17 20:34:58"]]
[[!meta author="Tyler Cipriani"]]
[[!meta copyright="""
Copyright &copy; 2018 Tyler Cipriani
"""]]
[[!meta title="Orion Nebula, M42"]]
[[!tag
photos
photos/70-200mm-f-2.8
photos/nikon-d610
photos/space
]]

![[Small](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/small.jpg) |
[Large](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/large.jpg) |
[Medium](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/medium.jpg) |
[Xlarge](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/xlarge.jpg) |
[Original](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/original.jpg)](https://photos.tylercipriani.com/thumbs/43/a10d00e6fb3380d7758c594173ecce/large.jpg)

This is the Great Orion Nebula, M42. I realized this is fairly easy to see with
a sufficient optical boost from my backyard which is roughly Bortle 6/7. This
is my second night trying to image this object (or any DSO, actually).

This is a stack of 10x88-second exposures (roughly 15 minutes total exposure
time). Polar-alignment on my SkyGuider Pro proved to be a bit difficult (once I
added the camera and counter balance I had to re-align), so this 15 minutes is the
result of me fiddling for an hour and a half or so. I did all the processing
for this photo using libre software. Camera/lens correction in RawTherapee,
aligned using `align_image_stack` in Hugin, average stacking using G'MIC,
final stacked image tone curve/RGB curve/saturation adjustments in RawTherapee.


EXIF |
--- | ---
ExposureTime | 88
FNumber | 2.8
Description | This is the Great Orion Nebula, M42. I realized this is fairly easy to see with a sufficient optical boost from my backyard which is roughly Bortle 6/7. This is my second night trying to image this object (or any DSO, actually). This is a stack of 10x88-second exposures (roughly 15 minutes total exposure time). Polar-alignment on my SkyGuider Pro proved to be a bit difficult (once I added the camera and counter balance I had to re-align), so this 15 minutes is the result of me fiddling for an hour and a half or so. I did all the processing for this photo using libre software. Camera/lens correction in RawTherapee, aligned using `align_image_stack` in hugin, average stacking using G'MIC, final stacked image tone curve/RGB curve/saturation adjustments in RawTherapee
Title | Orion Nebula, M42
FocalLength | 200.0 mm
CreateDate | 2018-02-17 20:34:58
Lens | 70-200mm f/2.8
ISO | 400
Model | NIKON D610
Make | NIKON CORPORATION

